Electron microscope



FIG. 1 is a front, top and right side perspective view of an ElectronMicroscope showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side view therof;

FIG. 6 is a left side view therof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a front, top and right side perspective view of an ElectronMicroscope in condition of usage, it being understood that the brokenline showing of environment is for illustrative purposes only and formsno part of the claimed design.

The ornamental design for an electron microscope, as shown anddescribed.